Difference between revisions of "EE Electronics ESLA201A"

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[[File:Esla201a.JPG|thumb|right|EE Electronics ESLA201A]]
{{Infobox logic analyzer
[[File:Esla201a-pcb.jpg|thumb|right|EE Electronics ESLA201A PCB]]
| image            = [[File:Esla201a.png|180px]]
| name            = EE Electronics ESLA201A
| status          = supported
| source_code_dir  = fx2lafw
| channels        = 8 + 1
| samplerate      = 8ch @ 24MHz, 8+1ch @ 12MHz
| samplerate_state = —
| triggers        = none (SW-only)
| voltages        = max. 5.5V
| threshold        = Fixed: V<sub>IH</sub>=1.4V, V<sub>IL</sub>=0.8V
| memory          = none
| compression      = none
| website          = [https://web.archive.org/web/20110213013236/http://eeelec.com/xla/ eeelec.com]
}}


The [http://eeelec.com/xla/ EE Electronics ESLA201A] is a Chinese clone of the CWAV USBee AX. It features 8 digital channels sampling at up to 24MHz and two analog channels.
The '''EE Electronics ESLA201A''' a USB-based, 8-channel logic analyzer with up to 24MHz sampling rate, with 1 additional analog channel (theoretically 2, but only one of them can be used at a time; 3MHz analog bandwidth).


== Components ==
It is a clone of the [[CWAV USBee AX-Pro]].


* CY7C68013A - [http://www.cypress.com/?rID=38801 FX2 56-pin]
In sigrok, we use the open-source [[fx2lafw]] firmware for this logic analyzer.
* ATMLH113 - I2C EEPROM
 
* TLC5510I - [http://www.ti.com/product/tlc5510 8-bit ADC]
'''Note''': [[fx2lafw]] currently doesn't support switching between the two possible analog channels, 1ACH (TODO: not verified on hardware) will be used unconditionally.
* 74HC4051D - [http://www.nxp.com/documents/data_sheet/74HC_HCT4051.pdf 8-channel analogue switch]
 
* LM358 - [http://www.national.com/mpf/LM/LM358.html Low Power Dual Op-Amp]
See [[EE Electronics ESLA201A/Info]] for some more details (such as '''lsusb -vvv''' output) on the device.
* MC33078 - [http://www.onsemi.com/PowerSolutions/product.do?id=MC33078 Low Noise Dual Op-Amp]
 
* ICL7650 - [http://www.maxim-ic.com/datasheet/index.mvp/id/1498 Chopper-Stabilized Op-Amp]
== Hardware ==
 
* Cypress CY7C68013A &mdash; [http://www.cypress.com/?rID=38801 FX2 chip, 56 pins]
* Atmel ATMLH113 &mdash; I2C EEPROM
* Texas Instruments TLC5510I &mdash; [http://www.ti.com/product/tlc5510 8-bit ADC]
* NXP 74HC4051D &mdash; [http://www.nxp.com/documents/data_sheet/74HC_HCT4051.pdf 8-channel analog switch]
* National LM358 &mdash; [http://www.national.com/mpf/LM/LM358.html Low Power Dual Op-Amp]
* ON Semiconductor MC33078 &mdash; [http://www.onsemi.com/PowerSolutions/product.do?id=MC33078 Low Noise Dual Op-Amp]
* Maxim ICL7660 &mdash; [http://datasheets.maxim-ic.com/en/ds/ICL7660-MAX1044.pdf Switched Capacitor Voltage Converter]
 
'''Analog frontend:'''
 
[[File:ESLA201A_Analog.svg]]
 
== Photos ==
 
<gallery>
File:Esla201a.JPG|<small>Device, top</small>
File:Esla201a-pcb.jpg|<small>PCB, top/bottom</small>
</gallery>


== Protocol ==
== Protocol ==


TODO.
Since we use the open-source [[fx2lafw]] firmware for this device, we don't need to know the protocol.
 
The USBee AX software controls the unit through a combination of command messages, and firmware patched for sample rates etc. downloaded before each capture. For this reason we have abandoned efforts to decode the protocol, and are working instead on [[fx2lafw]] &mdash; a replacement open source firmware for the device.
 
== Resources ==
 
* [http://stores.ebay.com/eeelec Eeelec eBay store] and [http://store.eeelec.com/ Eeelec webshop]
* [https://web.archive.org/web/20110213013236/http://eeelec.com/xla/ Eeelec: Software download location]
 
[[Category:Device]]
[[Category:Logic analyzer]]
[[Category:Oscilloscope]]
[[Category:Mixed-signal oscilloscope]]
[[Category:Supported]]

Revision as of 00:37, 18 September 2017

EE Electronics ESLA201A
Esla201a.png
Status supported
Source code fx2lafw
Channels 8 + 1
Samplerate 8ch @ 24MHz, 8+1ch @ 12MHz
Samplerate (state)
Triggers none (SW-only)
Min/max voltage max. 5.5V
Threshold voltage Fixed: VIH=1.4V, VIL=0.8V
Memory none
Compression none
Website eeelec.com

The EE Electronics ESLA201A a USB-based, 8-channel logic analyzer with up to 24MHz sampling rate, with 1 additional analog channel (theoretically 2, but only one of them can be used at a time; 3MHz analog bandwidth).

It is a clone of the CWAV USBee AX-Pro.

In sigrok, we use the open-source fx2lafw firmware for this logic analyzer.

Note: fx2lafw currently doesn't support switching between the two possible analog channels, 1ACH (TODO: not verified on hardware) will be used unconditionally.

See EE Electronics ESLA201A/Info for some more details (such as lsusb -vvv output) on the device.

Hardware

Analog frontend:

ESLA201A Analog.svg

Photos

Protocol

Since we use the open-source fx2lafw firmware for this device, we don't need to know the protocol.

The USBee AX software controls the unit through a combination of command messages, and firmware patched for sample rates etc. downloaded before each capture. For this reason we have abandoned efforts to decode the protocol, and are working instead on fx2lafw — a replacement open source firmware for the device.

Resources